Storage: Store at or below -20 ºC.
Solubility: Very soluble in water, up to about 200 mg/mL ; soluble in DMSO up to about 95 mg/mL; not soluble in ethanol; addition of an aqueous solution of this monohydrochloride salt into a buffer solution may significantly alter its solubility.
Disposal: A.

Certificate of Analysis

Nomenclature. Two names have been widely used for this compound, "HA-1077" and "Fasudil". These names have been variously and inconsistently applied to the free base, the monohydrochloride salt (the only form that LC Labs currently sells) and the dihydrochloride salt forms.

The monohydrochloride salt is the form used to prepare formulations of this drug for clinical use. Note that the solubility properties of the mono- and di-HCl salts are different.